Cogeneration unit and wind power joint heating system and scheduling method therefor

A scheduling method of a joint heat supply system of combined heat and power unit and wind power generation unit wherein the joint heat supply system of combined heat and power unit and wind power generation unit comprises:

• a coal-fired condensing-extraction combined heat and power unit configured to produce electric power and heating water;
• a wind power generation unit configured to produce electric power;
• an air conditioner heat pump of a user connected in parallel with the coal-fired condensing-extraction combined heat and power unit and the wind power generation unit via a power cable network;
• a remote switch for the air conditioner heat pump configured to control the air conditioner heat pump;
• a power meter configured to collect non-heating power consumption of the user;
• a water-heating radiator of the user connected with the coal-fired condensing-extraction combined heat and power unit via a heat supply network;
• a water consumption meter for the water-heating radiator configured to detect the hot water consumption of the water-heating radiator;
• a remote switch for the water-heating radiator configured to control the water-heating radiator;
• a first remote centralized controller configured to collect capacity information comprising water flow for heating output and electricity for power output, of the coal-fired condensing-extraction combined heat and power unit and transmit the capacity information to a comprehensive scheduling device;
• wherein the first remote centralized controller is further configured to receive a scheduling signal transmitted by the comprehensive scheduling device and control a control and execution device of the coal-fired combined heat and power unit to actuate according to the scheduling signal;
• a second remote centralized controller configured to collect capacity information of electricity for power output in the wind power generation unit and transmit the capacity information to the comprehensive scheduling device;
• a third remote centralized controller configured to store pipeline distance information of the user between the water-heating radiator of the user and the coal-fired condensing-extraction combined heat and power unit;
• to collect capacity information comprising hot water inflow and non-heating power consumption detected by the water consumption meter for the water-heating radiator and the non-heating power consumption of the user;
• to collect thermal inertia time input by the user;
• and to transmit the pipeline distance information of the user, the collected capacity information and the thermal inertia time to the comprehensive scheduling device;
• wherein the third remote centralized controller is further configured to receive the scheduling signal transmitted by the comprehensive scheduling device and drive the remote switch for the air conditioner heat pump and/or the remote switch for the heating radiator to actuate according to the scheduling signal;
• and
• the comprehensive scheduling device generates the scheduling signal according to the received capacity information, and the pipeline distance information and the power consumption information of the user and transmits the scheduling signal to the first remote centralized controller and/or the third remote centralized controller;
• the scheduling method comprises the following steps:
• predicting, by the comprehensive scheduling device, in a period 0˜T×ΔT, the capacity information for a period T˜2T×ΔT in the future according to the received capacity information of the coal-fired condensing-extraction combined heat and power unit and the wind power generation unit;
• under a condition that the power supply and heat supply are satisfied, according to the predicted capacity information in combination with the power consumption information of the user in the period of 0˜T×ΔT, reducing the water flow for heating output in the coal-fired condensing-extraction combined heat and power unit so that insufficient heat supply for the user due to the reduced hot water flow is compensated by the heat supply from the air conditioner heat pump consuming electricity, and calculating a compensation based on how long it is spent for the hot water to flow to and arrive at the user and the thermal inertia time, by the comprehensive scheduling device, where ΔT is a sampling period and T is times for collecting;
• and
• in the period of T˜2T×ΔT, calculating the scheduling signal according to a prediction and scheduling of the power supply and the heat supply and transmitting the scheduling signal at a regulation and control period of ΔT, by the comprehensive scheduling device;
• receiving the scheduling signal and controlling the water flow for heating output and electricity for power output of the coal-fired condensing-extraction combined heat and power unit, by the first remote centralized controller;
• receiving the scheduling signal and controlling the air conditioner heat pump to consume the power to supply heat, so as to compensate for insufficient heat supply due to the reduced hot water in the water-heating radiator, by the third remote centralized controller.